http://www.vb1000.com/ makes digital ballast and I think a few others do too.

Yes the owner of advanced nutrients is working with another company in Canada to make one ballast that would run 4 HPS lights. But thatâ??s nothing new there are warehouses running 3-phase transformers running 50 lights at a time. My area if engineering is more communication and broadband but I know whom to call. Pacific Transformers makes custom application transformers still I believe. It may be worth a phone call. I would think digital versions are many years away.
Zandor Reviewed by Zandor on . Dreaming? hello again, i just smoked some of the bud i've grown in my first grow and i am somehow dreaming with my eyes open......i am thinking of setting up a grow room (not now but within 6-8 months from now).....i want to devote an entire room for flowering......this means that i'll be needing at least 3000-4000 watts of hps.....however it is very illegal to grow cannabis over here and thus if i ever try to hook up 3-4 thousand hps lighting units i will get caught in action mainly due to the high Rating: 5